Yeah, I also dislike the English localization. Pretty pointless since the only people that would read this manga are already interested in mahjong in the first place (or willing to learn). Also, I don't understand why tsumo and sanshoku are in English while yaku like riichi, pinfu, tanyao aren't. It's not very consistent.
About the plot, she can't cheat with an autotable, right? But I immediately thought she did something to get a good starting hand lol. Maybe she just has good luck.